<?php    
return [
    'class' => 'yii\db\Connection',
    'dsn' => 'sqlite:' . DATA_ROOT . '/omc.db',
    'charset' => 'utf8',
    'tablePrefix' => 'ii_',
    'enableSchemaCache' => true,
    'schemaCacheDuration' => 86400,
    'schemaCache' => 'cache_db_schema'
];